Patents by Inventor Daisuke Takeda
Daisuke Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190369063Abstract: The present invention provides a novel method that is capable of detecting a trifluridine-related substance from a sample containing trifluridine or a salt thereof by high-performance liquid chromatography comprising two steps that are performed under gradient conditions. More specifically, the method is for detecting a trifluridine-related substance, the method comprising the step of subjecting a sample containing trifluridine or a salt thereof to high-performance liquid chromatography using a mobile phase composed of an organic phase and an aqueous phase, wherein the step of high-performance liquid chromatography comprises steps 1 and 2 that satisfy the following requirements: Step 1: the percentage of the organic phase in the entire mobile phase is 1 to 14% by volume; and Step 2: after step 1, elution is performed by applying a gradient of increasing the percentage of the organic phase in the entire mobile phase.Type: ApplicationFiled: June 17, 2019Publication date: December 5, 2019Applicant: TAIHO PHARMACEUTICAL CO., LTD.Inventors: Daisuke TAKEDA, Akiyo Kojima
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Publication number: 20190212309Abstract: The present invention provides a novel method that is capable of detecting a trifluridine-related substance from a sample containing trifluridine or a salt thereof by high-performance liquid chromatography comprising two steps that are performed under gradient conditions. More specifically, the method is for detecting a trifluridine-related substance, the method comprising the step of subjecting a sample containing trifluridine or a salt thereof to high-performance liquid chromatography using a mobile phase composed of an organic phase and an aqueous phase, wherein the step of high-performance liquid chromatography comprises steps 1 and 2 that satisfy the following requirements: Step 1: the percentage of the organic phase in the entire mobile phase is 1 to 14% by volume; and Step 2: after step 1, elution is performed by applying a gradient of increasing the percentage of the organic phase in the entire mobile phase.Type: ApplicationFiled: July 20, 2018Publication date: July 11, 2019Applicant: TAIHO PHARMACEUTICAL CO., LTD.Inventors: Daisuke TAKEDA, Akiyo KOJIMA
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Patent number: 10348524Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.Type: GrantFiled: May 17, 2018Date of Patent: July 9, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide Aoki, Daisuke Takeda, Takahiro Kobayashi, Yasuhiko Tanabe
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Publication number: 20190186532Abstract: Provided is a sintered bearing, which is obtained by sintering a green compact including: a partially diffusion-alloyed powder (11) in which a copper powder (13) adheres onto a surface of an iron powder (12) through partial diffusion; elemental copper powder; low-melting point metal powder having a lower melting point than copper; and graphite powder. The partially diffusion-alloyed powder (11) has a maximum particle diameter of 106 ?m or less, and the copper powder (13) of the partially diffusion-alloyed powder (11) has a maximum particle diameter of 10 ?m or less.Type: ApplicationFiled: September 7, 2017Publication date: June 20, 2019Inventors: Yoshinori ITO, Yuta OHASHI, Shinji KOMATSUBARA, Daisuke TAKEDA
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Publication number: 20190125921Abstract: Provided is a water-absorbing agent having an excellent ability to absorb and retain liquid and an excellent liquid suction power. The water-absorbing agent contains a polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e): (a) a weight average particle diameter (D50) is 300 ?m or more and less than 400 ?m; (b) a proportion of particles with a particle diameter of 600 ?m or more and less than 850 ?m is less than 10 weight %; (c) an average gap radius is 100 ?m or more and less than 180 ?m; (d) a CRC is 28 g/g or more and less than 34 g/g; and (e) an AAP is 24 g/g or more.Type: ApplicationFiled: March 28, 2017Publication date: May 2, 2019Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kazuki KIMURA, Nobuya TANAKA, Yuki TANAKA, Daisuke TAKEDA
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Patent number: 10243771Abstract: An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.Type: GrantFiled: January 3, 2017Date of Patent: March 26, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide Aoki, Ichiro Seto, Daisuke Takeda, Takehiko Toyoda, Ren Sakata
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Publication number: 20190030979Abstract: On an end portion of a hollow rod, which is a material of a hollow coil spring, a terminal sealed portion is formed. The terminal sealed portion has a rotationally symmetric shape in which an axis passing through the center of the rod is a symmetric axis. The terminal sealed portion includes an end wall portion, and a distal-end-center closure portion formed on the axis. In the distal-end-center closure portion, a distal end opening portion of the spin-formed rod is joined together and formed as an integral part. On the axis at the inner surface of the end wall portion, a recess having a rotationally symmetric shape in which the axis is the symmetric axis is formed. A thickness of the recess of the end wall portion is reduced toward the axis.Type: ApplicationFiled: September 27, 2018Publication date: January 31, 2019Applicant: NHK SPRING CO., LTD.Inventors: Masahiro UMEZAWA, Daisuke TAKEDA
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Publication number: 20190030973Abstract: A hollow coil spring is made of a hollow wire in which a terminal sealed portion is formed on an end portion of the wire. The terminal sealed portion has a rotationally symmetric shape in which an axis passing through the center of the wire is the symmetric axis. The hollow coil spring includes an end wall portion, and an end face arc-shaped curved surface. The end wall portion includes an end face perpendicular to the axis. A distal-end-center closure portion is formed on the axis at the center of the end wall portion. A spring seat includes a base member and a sheet member. An end turn portion of the hollow coil spring is in contact with the sheet member. The end face of the end turn portion is opposed to a stopper wall of the spring seat.Type: ApplicationFiled: September 27, 2018Publication date: January 31, 2019Applicant: NHK SPRING CO., LTD.Inventors: Masahiro UMEZAWA, Daisuke TAKEDA
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Publication number: 20180302247Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.Type: ApplicationFiled: May 17, 2018Publication date: October 18, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Tsuguhide AOKI, Daisuke Takeda, Takahiro Kobayashi, Yasuhiko Tanabe
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Publication number: 20180298132Abstract: To provide a disposable diaper enabling reduction in re-wet amount and having an excellent speed of incorporating liquid regardless of concentration and configuration of a water-absorbing agent in an absorbent material. A water-absorbing agent having excellent Gel Capillary Absorption (GCA) and Free Gel Bed Permeability (FGBP) is obtained by crushing a crosslinked hydrogel polymer obtained in a polymerization step to have a specific weight average particle diameter while fluid retention capacity and a surface tension of a water-absorbing agent are adjusted in a specific range, drying the crushed crosslinked hydrogel polymer, and then adding a liquid permeability enhancer thereto during surface crosslinking or after surface crosslinking.Type: ApplicationFiled: June 20, 2016Publication date: October 18, 2018Applicant: Nippon Shokubai Co., Ltd.Inventors: Tsuyoshi YORINO, Daisuke TAKEDA, Yoshitaka IKEUCHI, Shigeru SAKAMOTO, Yoshihiro SHOBO, Yoshifumi ADACHI, Ryota WAKABAYASHI, Daisuke TAKAGI, Sachie KITABATA
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Patent number: 10003478Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.Type: GrantFiled: February 15, 2017Date of Patent: June 19, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide Aoki, Daisuke Takeda, Takahiro Kobayashi, Yasuhiko Tanabe
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Publication number: 20180137580Abstract: A power station system and a server thereof. The server includes a power-generation-amount calculator, a trade amount calculator, a balance calculator, and an information display controller. The power-generation-amount calculator proportionally distributes power generation amount information in accordance with power generation share number information, and adds a distribution value to owned power amount information of each member. The trade amount calculator subtracts a power sales amount from the owned power amount information. The balance calculator adds a power sales profit based on a change in the owned power amount information to balance information. The information display controller transmits the owned power amount information of the member and the balance information thereof to a computer terminal.Type: ApplicationFiled: May 13, 2016Publication date: May 17, 2018Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Puttisin PORNMONTARUT, Daisuke TAKEDA
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Publication number: 20180131185Abstract: A power distribution monitoring and control device of an embodiment includes an acquirer and a representative sensor selector. The acquirer acquires a voltage measurement value measured by a plurality of sensors having a communication function installed in a power distribution system. The representative sensor selector selects one or more representative sensors in which the voltage measurement value has a high degree of similarity with that of other sensors installed in the power distribution area from one or more sensors installed in a power distribution area in the power distribution system by referring to the voltage measurement value acquired by the acquirer.Type: ApplicationFiled: March 24, 2016Publication date: May 10, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Kazunori IWABUCHI, Misao KIMURA, Yoshihito KINOSHITA, Ichiro TOYOSHIMA, Yuya SHINDE, Yukihiro OZAKI, Daisuke TAKEDA, Koji SASAKI
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Patent number: 9923744Abstract: An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.Type: GrantFiled: February 18, 2016Date of Patent: March 20, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide Aoki, Ichiro Seto, Daisuke Takeda, Takehiko Toyoda, Ren Sakata
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Publication number: 20180051747Abstract: Provided is a sintered bearing formed mainly of an iron structure (33) and a copper structure (31) which are formed of a partially diffusion-alloyed powder (11) of an iron powder (12) and a copper powder (13). The sintered bearing includes a copper structure (31d) formed of a granular elemental copper powder (13?) having a grain diameter of 45 ?m or less, the ratio of the copper structure (31d) being 10 mass % or less. With this, a further increase in strength of the sintered bearing can be realized.Type: ApplicationFiled: March 15, 2016Publication date: February 22, 2018Inventors: Tomonori YAMASHITA, Yoshinori ITO, Daisuke TAKEDA, Yuta OHASHI
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Patent number: 9785831Abstract: There is provided a personal information collection system comprising: an image reading unit configured to read an image of a document including personal information; an image dividing unit configured to divide a part of the image of the document corresponding to the personal information into a plurality of divided images; a correspondence management unit configured to manage correspondence relation between the divided images and an original image that is the part of the image of the document before being divided; a data entry unit configured to accept data input based on a visual observation of the divided images; and a connection unit configured to connect the input data based on the correspondence relation.Type: GrantFiled: December 9, 2015Date of Patent: October 10, 2017Assignee: Ricoh Company, Ltd.Inventors: Daisuke Takeda, Hiroyuki Nakaya
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Publication number: 20170163450Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.Type: ApplicationFiled: February 15, 2017Publication date: June 8, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide AOKI, Daisuke TAKEDA, Takahiro KOBAYASHI, Yasuhiko TANABE
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Publication number: 20170118056Abstract: An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.Type: ApplicationFiled: January 3, 2017Publication date: April 27, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide AOKI, lchiro SETO, Daisuke TAKEDA, Takehiko TOYODA, Ren SAKATA
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Patent number: 9608700Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.Type: GrantFiled: February 23, 2012Date of Patent: March 28, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tsuguhide Aoki, Daisuke Takeda, Takahiro Kobayashi, Yasuhiko Tanabe
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Publication number: 20160171298Abstract: There is provided a personal information collection system comprising: an image reading unit configured to read an image of a document including personal information; an image dividing unit configured to divide a part of the image of the document corresponding to the personal information into a plurality of divided images; a correspondence management unit configured to manage correspondence relation between the divided images and an original image that is the part of the image of the document before being divided; a data entry unit configured to accept data input based on a visual observation of the divided images; and a connection unit configured to connect the input data based on the correspondence relation.Type: ApplicationFiled: December 9, 2015Publication date: June 16, 2016Applicant: RICOH COMPANY, LTD.Inventors: Daisuke TAKEDA, Hiroyuki NAKAYA